Testing Construct Validity of Competency Indicators of Scientific Literacy in Junior Secondary Students

dc.contributor.authorChayada Jomtarak
dc.contributor.authorPeerawut Suwanjan
dc.contributor.authorPhadungchai Pupat
dc.contributor.authorRangsan Jomtarak
dc.date.accessioned2025-07-21T06:01:21Z
dc.date.issued2019-03-01
dc.description.abstractAbstract This research aimed to check the construct validity of competency indicators of scientific literacy in junior secondary students. The steps for conducting the research included a sample of 392 persons, derived from stratified random sampling, from a population of 22,855. The instrument used in this research is a measurement tool with a reliability of 0.838. Statistical analysis includes confirmatory factor analysis, mean, standard deviation, and one-way analysis of variance. The study results found that scientific literacy indicators of junior secondary students had construct validity by taking into consideration Chi-square = 20.842, df = 17, p = 0.233 and X 2 / df = 1.226. which was less than 2, while RMSEA = 0.024, RMR = 0.07, which was near to 0, GFI = 0.987, AGFI = 0.972, CFI = 0.979.
dc.identifier.doi10.2478/mjss-2019-0025
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/8224
dc.subjectStratified Sampling
dc.subjectValidity
dc.subjectSample (material)
dc.subjectScientific Literacy
dc.subject.classificationEducational Methods and Outcomes
dc.titleTesting Construct Validity of Competency Indicators of Scientific Literacy in Junior Secondary Students
dc.typeArticle

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